Cane Creek 40 EC34/28.6 Top Headset Black. Cane Creek 40-Series EC (External Cups) assemblies feature press-in cups with bearings outside the frame. The 40-Series is the workhorse of Cane Creeks headset line-up. Representing the balance of performance durability and value the series incorporates all the features necessary for a robust lightweight long-lasting headset.